公开(公告)号：US10827197B2

公开(公告)日：2020-11-03

申请号：US15138755

申请日：2016-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Jin-young Lee ,  Ho-cheon Wey ,  Chan-yul Kim

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/30 ,  H04N19/105 ,  H04N19/187 ,  H04N19/169 ,  H04N19/537

Abstract: Provided is a multilayer video decoding method including obtaining a multilayer video bitstream; determining, based on the obtained multilayer video bitstream, whether or not a default reference type, in which at least one layer is inter-layer predicted by using at least one reference layer by default, is used; and inter-layer predicting the at least one layer by using the at least one reference layer according to the default reference type, based on the determining of whether or not the default reference type is used, and decoding an image including the at least one layer.

公开(公告)号：US10659812B2

公开(公告)日：2020-05-19

申请号：US15777512

申请日：2016-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bo-ra Jin ,  Min-woo Park ,  Chan-yul Kim

IPC: H04N19/59 ,  H04N19/593 ,  H04N19/46 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/80 ,  H04N19/132 ,  H04N19/176 ,  H04N19/82

Abstract: Provided is a video decoding method including obtaining, from a bitstream, information about a prediction mode of a current block; when the prediction mode of the current block is an intra mode, obtaining information about an intra prediction mode of the current block; obtaining a predicted sample value of the current block by using at least one sample that is from among samples included in an adjacent reference region of a plurality of lines and is located, from the current block, in an intra prediction direction indicated by an intra prediction mode. The adjacent reference region of the plurality of lines may include a plurality of lines that are in a vertical direction and located at a left side of the current block, or a plurality of lines that are in a horizontal direction and located at an upper side of the current block.

公开(公告)号：US10602179B2

公开(公告)日：2020-03-24

申请号：US15522526

申请日：2015-11-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo Jeong ,  Min-woo Park ,  Jin-young Lee ,  Sun-il Lee

IPC: H04N19/52 ,  H04N19/176

Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

公开(公告)号：US10574986B2

公开(公告)日：2020-02-25

申请号：US15300571

申请日：2015-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee

IPC: H04N19/119 ,  H04N19/30 ,  H04N19/176 ,  H04N19/52 ,  H04N19/139 ,  H04N19/157 ,  H04N19/187 ,  H04N19/169 ,  H04N19/513 ,  H04N19/577 ,  H04N19/503

Abstract: Provided is an inter-layer video decoding method including determining a size of a subblock of a current block by comparing at least one of a height and a width of a predetermined minimum size of the subblock with at least one of a height and a width of the current block of a first layer image; determining at least one subblock from the current block according to the size of the subblock of the current block; determining a candidate block that corresponds to the current block and is included in an encoded second layer image; determining a candidate subblock from the candidate block of the second layer image by using the subblock of the current block; determining motion information of the subblock included in the current block by using motion information of the candidate subblock included in the candidate block; and generating a prediction block of the current block by using the motion information of the subblock included in the current block.

公开(公告)号：US10469866B2

公开(公告)日：2019-11-05

申请号：US14782549

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Jae-won Yoon ,  Byeong-doo Choi ,  Ho-cheon Wey ,  Yong-jin Cho

IPC: H04N19/513 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44 ,  H04N19/52 ,  H04N19/597 ,  H04N19/169

Abstract: Disclosed is a video decoding method including: obtaining a disparity vector having components in sub-pixel unit for interlayer prediction between images belonging to a current layer and a reference layer; determining a position of an integer pixel of the reference layer corresponding to a position indicated by the disparity vector obtained from the position of a current pixel of the current layer; and decoding the image of the current layer by using prediction information on a candidate area of the reference layer corresponding to the determined position of the integer pixel.

公开(公告)号：US10448050B2

公开(公告)日：2019-10-15

申请号：US15096666

申请日：2016-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Min-woo Park ,  Jin-young Lee ,  Yong-jin Cho ,  Chan-yul Kim ,  Ho-cheon Wey

IPC: H04N19/597 ,  H04N19/196 ,  H04N19/33 ,  H04N21/44 ,  H04N19/30 ,  H04N19/423 ,  H04N19/70 ,  H04N19/31 ,  H04N19/44

Abstract: Provided are multilayer video encoding/decoding methods and apparatuses. A multilayer video decoding method may comprise obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) with respect to a layer set comprising a plurality of layers; determining a size of the DPB with respect to the layer set based on the obtained information indicating the maximum size of the DPB; and storing a decoded picture of the layer set in the DPB of the determined size.

公开(公告)号：US10432947B2

公开(公告)日：2019-10-01

申请号：US15771006

申请日：2016-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Na-rae Choi ,  Min-woo Park ,  Chan-yul Kim

IPC: H04N19/159 ,  H04N19/117 ,  H04N19/182 ,  H04N19/80 ,  H04N19/176 ,  H04N19/147 ,  H04N19/105 ,  H04N19/11 ,  H04N19/33 ,  H04N19/625 ,  H04N19/119 ,  H04N19/96 ,  H04N19/14

Abstract: Provided are a video decoding method and a video decoding apparatus capable of performing the video decoding method. The video decoding method includes: determining neighboring pixels of a current block to be used for performing intra prediction on the current block; acquiring, from a bitstream, information indicating one of a plurality of filtering methods used on the neighboring pixels; selecting one of the plurality of filtering methods according to the acquired information; filtering the neighboring pixels by using the selected filtering method; and performing the intra prediction on the current block by using the filtered neighboring pixels, wherein the plurality of filtering methods comprise a spatial domain filtering method and a frequency domain filtering method, wherein the spatial domain filtering method filters the neighboring pixels in a spatial domain, and the frequency domain filtering method filters the neighboring pixels in a frequency domain.

公开(公告)号：US10349084B2

公开(公告)日：2019-07-09

申请号：US15186883

申请日：2016-06-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Ho-cheon Wey ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/513 ,  H04N19/625

Abstract: An inter-view video decoding method may include determining a disparity vector of a current second-view depth block by using a specific sample value selected within a sample value range determined based on a preset bit-depth, detecting a first-view depth block corresponding to the current second-view depth block by using the disparity vector, and reconstructing the current second-view depth block by generating a prediction block of the current second-view depth block based on coding information of the first-view depth block.

公开(公告)号：US10182234B2

公开(公告)日：2019-01-15

申请号：US15098544

申请日：2016-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee ,  Ho-cheon Wey ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/159 ,  H04N19/187 ,  H04N19/176 ,  H04N19/105 ,  H04N19/597 ,  H04N19/30 ,  H04N19/186 ,  H04N19/96

Abstract: An inter-layer video decoding method is described including reconstructing a color image and a depth image of a first layer based on encoding information about the color image and the depth image of the first layer obtained from a bitstream. When it is determined that a prediction mode of a current block of a second layer image to be decoded is a view synthesized prediction mode based on an image synthesized from the first layer image a determination is made whether to perform luminance compensation on the second layer current block to be reconstructed. Use of the view synthesized prediction mode to reconstruct the second layer current block depends on the luminance compensation determination.

公开(公告)号：US10063878B2

公开(公告)日：2018-08-28

申请号：US15187160

申请日：2016-06-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Jin-young Lee

IPC: H04N19/513 ,  H04N19/597 ,  H04N19/30 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70 ,  H04N19/593

CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/30 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

Abstract: Provided is an interlayer video decoding method. The interlayer video decoding method includes: obtaining brightness compensation information indicating whether a second layer current block performs brightness compensation; determining whether a candidate of the second layer current block is usable as a merge candidate based on whether the brightness compensation information indicates that the brightness compensation is performed and whether the candidate of the second layer current block performs time direction inter prediction; generating a merge candidate list including at least one merge candidate based on a result of the determining; and determining motion information of the second layer current block by using motion information of one of the at least one merge candidate.